ssm框架整合报错,求大神指导

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [spring/spring-dao.xml]: Invocation of init method failed; nested exception is org.apache.ibatis.builder.BuilderException: Error creating document instance. Cause: org.xml.sax.SAXParseException; lineNumber: 3; columnNumber: 16; 文档根元素 "configuration" 必须匹配 DOCTYPE 根 "mapper"。

Caused by: org.apache.ibatis.builder.BuilderException: Error creating document instance. Cause: org.xml.sax.SAXParseException; lineNumber: 3; columnNumber: 16; 文档根元素 "configuration" 必须匹配 DOCTYPE 根 "mapper"。

Caused by: org.xml.sax.SAXParseException; lineNumber: 3; columnNumber: 16; 文档根元素 "configuration" 必须匹配 DOCTYPE 根 "mapper"。

spring-dao.xml
<?xml version="1.0" encoding="UTF-8"?>
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd">

<context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
    <property name="driverClass" value="${jdbc.driverClass}"></property>
    <property name="jdbcUrl" value="${jdbc.url}"></property>
    <property name="user" value="${jdbc.username}"></property>
    <property name="password" value="${jdbc.password}"></property>

    <!-- c3p0连接池的私有属性 -->
    <property name="maxPoolSize" value="30"></property>
    <property name="minPoolSize" value="10"></property>
    <!-- 关闭连接后不自动commit -->
    <property name="autoCommitOnClose" value="false"></property>
    <!-- 获取连接超时时间 -->
    <property name="checkoutTimeout" value="1000"></property>
    <!-- 当获取连接失败重试次数 -->
    <property name="acquireRetryAttempts" value="2"></property>

mybaties 配置贴一下

mybaties
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">


<!-- 使用jdbc的getGeneratedKeys获取数据库自增键值 -->



<!-- 使用列别名代替列名 -->

    <setting name="mapUnderscoreToCamelCase" value="true" />
</settings>

mybaties
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">


<!-- 使用jdbc的getGeneratedKeys获取数据库自增键值 -->



<!-- 使用列别名代替列名 -->

    <setting name="mapUnderscoreToCamelCase" value="true" />
</settings>